Last week, the Bank of England opted to increase interest rates for the first time in a decade. Since then alerts have been coming thick and fast for Britons warning them to prepare for some tough financial times ahead.

The UK government has launched an inquiry into household debt levels amid concerns of the impact of the Bank of England's decision to raise rates. The tiny 0.25% rise means households on variable interest rate mortgages are expected to face about £1.8bn in additional interest payments whilst £465m more will be owed on the likes of credit cards, car loans and overdrafts.

The 0.25% rise is arguably not much given it comes against backdrop of record low rates and will have virtually no impact on any other rate. However it comes at a time of high domestic debt levels, no real wage growth and a global debt level of over $217 trillion.

Combined with low productivity across the developed world, experts are beginning to wonder how the financial system (and the individuals within) will cope.

After a decade of seeing negative real rates of interest many investors will be quietly celebrating that they may be about to see a turnaround for their savings. Many hope they will start being rewarded for their financial prudence as opposed to the punishing saving conditions of the last decade.

In reality this will not be the case, at least for some time. Savers and investors alike need to begin to prepare their portfolios for interest rate rises against a backdrop of crisis-triggering debt levels and unproductive economies.

Economies are junkies addicted to credit

Unsurprisingly, credit levels are equal to the increase in private debt every year. Credit is when people spend money that isn't their own but instead borrow from banks. The bigger private debt levels are compared to a country’s GDP, the more the economy is dependent on credit.

Economic growth becomes addicted to credit. Therefore, the bigger the accumulated debt is when compared to GDP, the more likely it is an economic crisis will happen when credit levels are reduced.

An increase in interest rates means a decrease in credit levels. Especially in countries such as the US and UK where there has been no increase in real wage rates and there is a generation unprepared for an increase in the price of debt.

Consider the UK. When Mark Carney announced a decade-first increase in interest rates it was by a meagre 0.25%. Panic hit the newspapers; how would people with variable mortgages manage?

No one thought to ask, what are people who cannot manage a tiny increase in the cost of debt doing being allowed to borrow in the first place?

Currently debt-to-GDP ratios in the UK are not quite at pre-crisis or Great Depression levels. However they are fast approaching and they are at those levels globally. This combined with rising levels of interest rates makes for a tricky future and one that places savers and investors capital at risk.

700 year data forewarns of sudden interest rate turnaround

According to Bank of England guest blogger Paul Schmelzing as reported by Bloomberg the 700-year average real rate (the benchmark interest rates minus inflation) over the last 700 years (see chart at top) has been 4.78% and the average for the last two hundred years is 2.6%. Unsurprisingly he notes “the current environment remains severely depressed”.

More worryingly Schmelzing believes we have been in a downward trend for the last 500-years.

Upon closer inspection, it can be shown that trend real rates have been following a downward path for close to five hundred years, on a variety of measures. The development since the 1980s does not constitute a fundamental break with these tendencies.

Why is this worrying? Because the bounce back is not only inevitable, but will also be painful and sharp:

Most reversals to “real rate stagnation” periods have been rapid, non-linear, and took place on average after 26 years. Within 24-months after hitting their troughs in the rate depression cycle, rates gained on average 315 basis points, with two reversals showing real rate appreciations of more than 600 basis points within 2 years.

How will we know if such a correction is headed our way? Aside from the fact that central banks are beginning to increase rates of their own volition there are other macro indicators, many of which resonate with the current environment:

Most of the eight previous cyclical “real rate depressions” were eventually disrupted by geopolitical events or catastrophes, with several – such as the Black Death, the Thirty Years War, or World War Two – combining both demographic, and geopolitical inflections...the infamous “Panic of 1873” heralded the advent of two decades of low productivity growth, deflationary price dynamics, and a rise in global populism and protectionism.

Sound familiar?

$217 trillion global debt bubble set to pop

Currently the total global debt bubble is over $217 trillion, with little sign of it slowing. We have built a so-called economic recovery on debt. Spending has been encouraged on a pile of low interest rates and easy-to-reach cheap lines of credit. It has not been encouraged with the thought that one day interest rates will have to climb.

A sudden uptick in interest rates could not come at a more precarious time for global finances. It is not just personal debt levels that are of concern, especially when the Bank of International Settlements is aware of $13 trillion of 'missing debt'.

In September this year the BIS said it was hard to assess the risk this “missing” debt poses, but its main worry was a repeat of events in the financial crisis: a liquidity crunch like the one that seized FX swap and forwards markets.

It is safe to say that a decade on from the global financial crisis we now have the makings of a new one.

In November last year, unsecured household debt in the UK passed pre-financial crisis highs in 2008. In the UK, debt excluding student loans crept up to £192bn, the highest figure since December 2008, and it continues to rise this year. Meanwhile, in the eurozone, debt-to-GDP ratios in Greece, Italy, Portugal and Belgium remain over 100 per cent. As of March there were more than $10tn negative yielding bonds in Europe and Japan.

With or without moderate interest rate increases, debt on a global level is becoming more expensive as markets price in further rate hikes. Add to this the global imbalances we see across the globe it is becoming increasingly questionable how so many countries will manage to service these debts.

Clouded judgement of central bankers

When the Bank of England's Mark Carney issued a statement following the 0.25% increase, he was clearly down about the future prospects for the UK. He was so wary about encouraging any kind of positivity regarding Brexit and the country's productivity that he almost warned against sharp future rate rises. The pound dropped unexpectedly in the wake his candidness.

What's worrying to investors is that Carney (and other fellow bankers) seem to feel interest rate rises are almost to be done at whim. In truth, they are unlikely to have much more time before they are forced to hike rates and then it will be far more dramatic than a gesture of 0.25%.

This is worrying because the economy is unlikely to be strong enough to handle such a change. In turn this will impact economies, financial markets and assets - especially risk assets.

Many economists argue that it is only growth that can pull us out of this situation but we now live in a world where we only know how to create growth from debt. We do not know how to grow a healthy economy without the dripping syringe of the current debt based banking and monetary system.

This is the case both in people's homes and in the highest government offices. It is an epidemic of global proportions.

Investors need to protect themselves from the addictive nature of these behaviours. We all know what happens to those who are unable to cut themselves off. They find excuses and then they come knocking for help. This is where you must ensure your finances are protected. and you are not forced to "help" the reckless bankers and their dangerous monetary system.

Move to safe haven higher ground from coming debt tidal wave

As we have discussed previously, the global debt bubble is prompting the wealthiest to diversify into gold. Wealthy investors and some of the world's largest institutions in the world, including Lord Rothchilds, Ray Dalio and insurance company Munich Re, have all expressed their desire to protect their portfolios from the next financial crisis.

The next financial crisis may well be preceded by something we did not experience ten years ago but is now a very real scenario - bail-ins. As banks struggle to retrieve payments from those unable to service debts they will begin to falter. Governments will need to step-in. 'Luckily' for them they had the foresight to agree that bail-ins could happen.

This places your investments and especially your deposits at arguably greater risk than before the first financial crisis. With this in mind, follow the likes of Munich Re and prepare your portfolio against counterparty risk, unforeseen consequences of interest rate climbs and the collapse of the global debt bubble. Avoid ETF and digital gold and dependence on single counter parties and have outright legal ownership of segregated, allocated gold bullion coins and bars.